HCID 4261464, Verbindung → 1-(4-Chlorophenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile
Reaktionsgleichung
[C:1]([C:3](=[CH:12][NH:13][C:14]1[CH:19]=[CH:18][C:17]([Cl:20])=[CH:16][CH:15]=1)[C:4]([NH:6][C:7](OCC)=[O:8])=[O:5])#[N:2]>ClC1C=CC=CC=1Cl>[C:1]([C:3]1[C:4](=[O:5])[NH:6][C:7](=[O:8])[N:13]([C:14]2[CH:19]=[CH:18][C:17]([Cl:20])=[CH:16][CH:15]=2)[CH:12]=1)#[N:2]Komponenten
3
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of 8.8 g (0.03 mol) of α-cyano-β-(4-chloroanilino)-N-ethoxycarbonylacrylamide and 40 ml of ortho-dichlorobenzene is heated at reflux. After about 2 hours, crystals appear and the mixture is allowed to cool to room temperature. The mixture is filtered to yield 5-cyano-1-(4-chlorophenyl)uracil, m.p. 236°-239°.
Aufarbeitung
- temperatureis heated
- temperatureat reflux
- filtration